Mechanism for controlling brakes or the like



y 1930- R. s. GANS 1,758,694

MECHANISM FOR CONTROLLING BRAKES OR THE LIKE Filed Nov. 18, 1927 2Sheets-Sheet 1 INVENTOR.

I f5 556' s. qygji BY 0 67' 4 M A T TORNE Y.

2 Sheets-Sheet 2 IN V'EN TOR. l bert 5- flaws.

g MWK I ATTORNEY.

May 13, 1930. R. s. GANS MECHANISM FOR CONTROLLING BRAKES OR THE LIKEFiled Nov. 18, 1927 Patented May 13, 1930 I I I i i UNITED STATES PATENTOFFICE ROBERT S. GANS, OF DETROIT, MICHIGAN MECHANISM FOR CONTROLLINGBRAKES OR'THE LIKE Application filed November 18, 1927. Serial No.234,119.

This invention has to do with a mechanism Fig. is a view of a modifiedconstruction for controlling brakes or the like. embodying the sameprinciples as the fore- An object of the invention is the provisiongoing forms but which is modified so as to of such a mechanism whichemploys an Operinclude a different form of positive locking 5 atinglever'which can be moved to various means. 55

positions and which, by reason of the mecha- Fig. 6 1s a V ew showingthe locking arnism, will remain in the position in which it r ngcm nt ofFig. 1n locked position. is placed. This is accomplished without em- F1g. 7 1s a plan view taken at right angles ploying a latching mechanismwhich has to t0 Fig. 5.

10 be manipulated by the operator, so that all Th mechanlsm 1S p r e y aimp e 60 that is required of an perator is to merely action bypllllll'lg and PllSlllIlg 0f til? lever hift th lever t th d i d itimeans of a handle formation on its upper A mechanism f thi character i dib d end. A pull on the lever applies the brakes d l i d i my copendingli ti and a push on the lever releases the brakes.

Serial-No. 114,138, filed June 7, 1926. This In a- 1 h mechamsm 18 shownin ff 65 present invention, however, is directed tol)0E1t1On 0r 1h otherWords, Wlth h brakes ward a different and improved construction. h ph T9pp y the h the el Although this mechanism is such as to auto- 15 Pulhw hleft to fight causlhg the lower matically lock itself in any position inwhich d of the level to move from Flghfi to left- 20 it i l d t ittimovement f This movement causes the roller to ride along 70 place to l cb an Operator Without over the corrugations and also pulls the brakelocking the mechanism,-the invention contemrod from fight to left Q thuspp y the plates an additional positive locking arrangement which can beused whenever desired to It W111 he noted that t brake r d. 18Conpositively prevent accidental movement of nested lntermedlate em er 5at a 75 the mechanism. An example of this can be P whufh 1S Q h of hhe hthe P given h id i the mechanism where the intermediate member 1Sconnected mounted for operating the brakes of-anautoto l In other W wthe PWOtal motive vehicle. To set the brakes the lever polhts and 6 arem dlsahghlheht that i moved t proper iti d automatically tension on thebrake rod tends to swing the so stays in this position to hold thebrakes set. lnteljmedmte member around Plvotal (30h- If, however, thevehicle is to be left for a hectloh The tendency of thls m0Ye111 nt i df time d it b d i bl t is prevented because the roller 8 contacts withtively insure against accidental release of the the The two P andbrakes, this separate locking device may then l' are trlahgulal:arrangement, and be used. when the brakes are applied the roller rests Ith accompanying d i in one of the furrows of the corrugated por- Fig. 1is a side elevation of the mechanism tloh and 1t 13 urged a y dow'il hth1 showing an operating lever. a brake rod with h 50 that thelhechanlfsm Stays 1h P9 inter os d echani ti l connecting tion and holdsthe brakes in on position.

th l v r nd br k d, The greater the pull by the brake rod, the Fig 2 i ai imil t Fi 1 h i more secure the holding action. The roller themechanism t with th b k li d thus acts as a fulcrum point for the inter-Fi 3 i a i t k tl on li SQQtiQ n mediate member 5. A. pull on the brakerod 45 33 of Fig. 1 and showing als th lever is divided into componentparts so that the mounting. roller is urged downwardly into a furrowFig. 4 is a side View of the mechanism i iand an upward force is on thepin 6 substanlar to that shown in Figs. 1 and 2, and also tiallydirectly toward the fulcrum point 2 showing an additional positivelocking of the lever. This force will be overcome by 50 means. the fixedfulcrum and by the fixed position of the roller in. a furrow. In orderto release the brake, however, it is merely necessary to push the upperend of the lever from right to left.

Should it be desirable to positively insure against the release of thebrakes by accidental movement of the lever from right to left, as abovedescribed, a separate positive locking means can be provided, such asshown in Fig. 4:. This locking device may take the form of a member 15pivoted at the fulcrum point of the lever and provided with an operatingpart 16 and a part 17 for engagement with the intermediate member 5which; may be slightly changed in shape to provide an upwardly extendingportion 5. When this locking device is in the position shown in dottedlines the mechanism is free to operate in'the manner as just abovedescribed, and.

sufiicient friction can be provided at the place where the member 15 ispositioned to hold it in position. After the brakes are set, this membermay be rocked on its pivot so that the abutment 17 engages theprojection 5.

This positively prevents the member 5 from raising to permit the rollerto move out of the furrow even though a pushing force is ap plied to theupper end of the lever. In order to release the brakes the member 15must be actuated to about the position shown in dotted lines so astofree the abutment 17 from the projection 5.

As will be seen b reference to Figs. 5 and 6, the lever 20 is ulcrumed,as at 21, on a member 22 held in place by rivets or bolts, 23, thismember having a corrugated portion .24. The 7 intermediate member 25 issomewhat elongated so as to extend upwardly along side of the lever. Thelever is pivoted to the intermediate member, as at 26, and the brake rod27 is pivoted to the intermediate member, as at 28. The roller 29carried by the intermediate member engages the corrugated portions 24.As thus far described, this device operates in a manner as abovedescribed with reference to the mechanism shown in Figs. 1 and 2.

The intermediate member 25 is preferably made of two like stampingswhich correspond to the structure of Figs. 1 and 2. These stampings maybe rovided with projecting portions 30 and 31 or the purpose of engagingopposite sides of the lever. The members are cut away to provide achannel 32 which affords a surface 33 disposed at an angle to theadjacent portion of the lever.

A locking pin 35 is disposed in this channel, and preferably a lightspring 36 connects this locking pin with some convenient portion of themechanism. as for example, the pin 28 which connects the brake rod withthe mechanism. The channel in which the pin is mounted is shaped toprovide an abutment 37.

lVhen the pin is in the position shown in positively lock the mechanismagainst re-' lease, the locking pin is moved over the abutments 37 anddropped in the space bounded on one side by the lever and on the otherside by the slanting surface 33. lVhen an attempt is made to release thebrakes, the roller 29 tends to ride up upon anadjacent ridge of thecorrugatedportion, and to do this it must swing the members '25 aroundpivot point 26 so that the upper ends of these members swing in towardthe lever. This is positively prevented by reason of the pin being inthe position as shown in Fig. 6. Thus accidental release of themechanism is prevented.

This construction is fully operative without the use of the pin inasmuchas the brakes can be applied, held applied and released by the mere actof pushing thelever back and for The pin need never be used except whenpositive locking action is desired.

The spring 36 is not necessary to the operation of the device, but it isused primarily to hold the locking pin tightly in the position shown inFig. 5 so that it will not rattle during operation of the automotivevehicle. This is a light spring and permits the locking pin to be easilyraised over the projections 37. Also the spring may aid in pull sentialbecause the pin will serve as a positive lock with or without thespring.

It has been found advantageous to describe this mechanism in connectionwith, and for the purpose of operating the brakes of a vchicle, but itis not intended that the mechanism of the invention be limited to suchuse. It is clear that the mechanism can be employed for the purpose ofactuating mechanism other than the brakes of a vehicle.

Claims:

1. A control mechanism for brakes or the like, comprising in combinationta lever, a brake rod, an intermediate device pivotally connected to thelever and pivotally connected to the brake rod, a member providedwith acorrugated surface, means on the'intermcdiate device for slidablyengaging this corrugated surface upon movement of the lever, the'twopoints of pivotal connection and the means onthe intermediate devicebeing arranged'iina fixed triangle whereby the pull of thebrak'e'rodcauses the means of the in termediate device to engage and lock in afurrow of the corrugated member, the. relative relation between thedepth of furrows of the corrugated surface and the said means whichengages the same being such that the said means moves along thecorrugated surpower to the lever.

2. A control mechanism comprising in combination a rigid lever having afixed fulcrum point, controlled means, an intermediate device connectedto the lever and t0 the controlled means, a member having a corrugatedsurface with which the intermediate device contacts and along which itslides upon 0 eration of the lever, this intermediate device eingconnected with the other members in such a way that a pull of thecontrolled means seats the intermediate device in a furrow of thecorrugations and tends to swing the same on a fulcrum point located atthis furrow, the fulcrum of the lever be ing positioned so as tosubstantially directly overcome this swinging movement withoutsubstantial tendency to swing the leveron its fulcrum, the corrugatedsurface having furrows and ridges of such construction as to permit theintermediate device. to slide along same upon application of power tothe lever in either direction.

3. A control mechanism, comprising in combination a lever, a brake rod,an intermediate device to which the lever and brake rod are connected, amember having a corrugated surface, and a roller on the intermediatedevice which engages this corrugated surface, the points of connectionof the lever and brake rod and the roller being arranged in a trianglefixed relative to each other and the arrangement being such as to causethe roller to seat in any one of the furrows by reason of pull of thebrake rod whereby to lock the mechanism.

4. A control mechanism for brakes or the like, comprising in combinationa lever, a brake rod, an intermediate device to which the lever andbrake rod are connected, a member having a corrugated surface with whichthe intermediate device contacts, the said intermediate device beingadapted to seat in any one of the furrows to lock the mechanism againstpull of the brake rod, and positive locking means for preventing saidintermediate device from raising out of the furrow whereby to lock themechanism against powor applied to the lever.

5. A control mechanism for brakes or the like, comprising in combinationa lever, a brake rod, an intermediate device to which the lever andbrake rod are connected, a member having a corrugated surface with whichthe intermediate device contacts, the said intermediate device beingadapted to seat in any one of the furrows to lock the mechanism againstpull of the brake rod, and posi tive locking means for preventing saidintermediate device from raising out of the furrow whereby to lock themechanism against power applied to the lever, said locking means beingnormally inoperative but being arranged to be brought into operationonly when desired.

6. A control mechanism for brakes or the like, comprising in combinationa lever, a. brake rod, an intermediate device to which the lever andbrake rod are connected, a member having a corrugated surface with whichthe intermediate device contacts, the said intermediate device beingadapted to seat in any one of the furrows to lock the mechanism againstpull of the brake rod, and positive locking means insertable between theintermediate device and lever to lock the intermediate device in afurrow to preventmovement of the mechanism by power applied to thelever.

7 A control mechanism for brakes or the like, comprising in combinationa lever, a brake rod, an intermediate device to which the lever andbrake rod are connected, a member having a corrugated surface with whichthe intermediate device contacts, the said intermediate device beingadapted to seat in any one of the furrows to lock the mechanism againstpull of the brake rod, and positive locking means insertable between thein termediate device and lever to lock the intermediate device in afurrow to prevent movement of the mechanism by power applied to thelever, said positive locking means being in the form of a pin andnormally held by the intermediate device in an inoperative position andmovable into locking position.

8. A control mechanism for brakes or the like, comprising in combinationa lever, a brake rod, an intermediate device to which the lever andbrake rod are connected, a member having a corrugated surface with whichthe intermediate device contacts, the said intermediate device beingadapted to seat in any one of the furrows to lock the mechanism againstpull of the brake rod, and positive locking means insertable between theintermediate device and lever to lock the intermediate device in afurrow to prevent movement of the mechanism by power applied to thelever, said positive locking means being in the form of a pin andnormally held inoperative by the intermediate device and movable intolocking position, and spring means acting on this pin and serving tohold the same in either operative or inoperative positions.

In testimony whereof I aflix my signature.

ROBERT S. GANS.

